polar coordinates

17 LETTERS · STARTS WITH P

polar coordinates is a valid 17-letter word worth 21 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3O1L1A1R1C3O1O1R1D2I1N1A1T1E1S1

3 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 1 + 2 + 1 + 1 + 1 + 1 + 1 + 1 =21 PTS

DOUBLE WORD → 42TRIPLE WORD → 63

MEANING

What does polar coordinates mean?